144 lines
5.1 KiB
C++
144 lines
5.1 KiB
C++
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///////////////////////////////////////////////////////////////////////////////
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//
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// DESCRIPTION
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// Some general-purpose functions for the WinTab demos.
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//
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// COPYRIGHT
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// Copyright (c) 2014-2020 Wacom Co., Ltd.
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// All rights reserved.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include <string>
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#include "wtutil.h"
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//////////////////////////////////////////////////////////////////////////////
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HINSTANCE ghWintab = nullptr;
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WTINFOA gpWTInfoA = nullptr;
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WTOPENA gpWTOpenA = nullptr;
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WTGETA gpWTGetA = nullptr;
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WTSETA gpWTSetA = nullptr;
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WTCLOSE gpWTClose = nullptr;
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WTPACKET gpWTPacket = nullptr;
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WTENABLE gpWTEnable = nullptr;
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WTOVERLAP gpWTOverlap = nullptr;
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WTSAVE gpWTSave = nullptr;
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WTCONFIG gpWTConfig = nullptr;
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WTRESTORE gpWTRestore = nullptr;
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WTEXTSET gpWTExtSet = nullptr;
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WTEXTGET gpWTExtGet = nullptr;
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WTQUEUESIZESET gpWTQueueSizeSet = nullptr;
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WTDATAPEEK gpWTDataPeek = nullptr;
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WTPACKETSGET gpWTPacketsGet = nullptr;
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WTMGROPEN gpWTMgrOpen = nullptr;
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WTMGRCLOSE gpWTMgrClose = nullptr;
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WTMGRDEFCONTEXT gpWTMgrDefContext = nullptr;
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WTMGRDEFCONTEXTEX gpWTMgrDefContextEx = nullptr;
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// TODO - add more wintab32 function pointers as needed
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WTQPACKETSEX gpWTQueuePacketsEx = nullptr;
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WTQSIZEGET gpWTQueueSizeGet = nullptr;
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//////////////////////////////////////////////////////////////////////////////
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// Purpose
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// Find wintab32.dll and load it.
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// Find the exported functions we need from it.
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//
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// Returns
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// TRUE on success.
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// FALSE on failure.
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//
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BOOL LoadWintab(void)
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{
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// load the wintab32 dll
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ghWintab = LoadLibraryA("Wintab32.dll");
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if (!ghWintab)
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{
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const DWORD err = GetLastError();
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ShowError("Could not load Wintab32.dll: " + std::to_string(err));
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return FALSE;
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}
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// Explicitly find the exported Wintab functions in which we are interested.
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// We are using the ASCII, not unicode versions (where applicable).
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gpWTOpenA = (WTOPENA)GetProcAddress(ghWintab, "WTOpenA");
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gpWTInfoA = (WTINFOA)GetProcAddress(ghWintab, "WTInfoA");
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gpWTGetA = (WTGETA)GetProcAddress(ghWintab, "WTGetA");
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gpWTSetA = (WTSETA)GetProcAddress(ghWintab, "WTSetA");
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gpWTPacket = (WTPACKET)GetProcAddress(ghWintab, "WTPacket");
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gpWTClose = (WTCLOSE)GetProcAddress(ghWintab, "WTClose");
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gpWTEnable = (WTENABLE)GetProcAddress(ghWintab, "WTEnable");
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gpWTOverlap = (WTOVERLAP)GetProcAddress(ghWintab, "WTOverlap");
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gpWTSave = (WTSAVE)GetProcAddress(ghWintab, "WTSave");
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gpWTConfig = (WTCONFIG)GetProcAddress(ghWintab, "WTConfig");
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gpWTRestore = (WTRESTORE)GetProcAddress(ghWintab, "WTRestore");
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gpWTExtSet = (WTEXTSET)GetProcAddress(ghWintab, "WTExtSet");
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gpWTExtGet = (WTEXTGET)GetProcAddress(ghWintab, "WTExtGet");
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gpWTQueueSizeSet = (WTQUEUESIZESET)GetProcAddress(ghWintab, "WTQueueSizeSet");
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gpWTDataPeek = (WTDATAPEEK)GetProcAddress(ghWintab, "WTDataPeek");
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gpWTPacketsGet = (WTPACKETSGET)GetProcAddress(ghWintab, "WTPacketsGet");
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gpWTMgrOpen = (WTMGROPEN)GetProcAddress(ghWintab, "WTMgrOpen");
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gpWTMgrClose = (WTMGRCLOSE)GetProcAddress(ghWintab, "WTMgrClose");
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gpWTMgrDefContext = (WTMGRDEFCONTEXT)GetProcAddress(ghWintab, "WTMgrDefContext");
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gpWTMgrDefContextEx = (WTMGRDEFCONTEXTEX)GetProcAddress(ghWintab, "WTMgrDefContextEx");
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gpWTQueuePacketsEx = (WTQPACKETSEX)GetProcAddress(ghWintab, "WTQueuePacketsEx");
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gpWTQueueSizeGet = (WTQSIZEGET)GetProcAddress(ghWintab, "WTQueueSizeGet");
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// TODO - don't forget to NULL out pointers in UnloadWintab().
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return TRUE;
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}
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//////////////////////////////////////////////////////////////////////////////
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// Purpose
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// Uninitializes use of wintab32.dll
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//
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// Returns
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// Nothing.
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//
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void UnloadWintab(void)
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{
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if (ghWintab)
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{
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FreeLibrary(ghWintab);
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ghWintab = nullptr;
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}
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gpWTOpenA = nullptr;
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gpWTClose = nullptr;
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gpWTInfoA = nullptr;
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gpWTPacket = nullptr;
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gpWTEnable = nullptr;
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gpWTOverlap = nullptr;
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gpWTSave = nullptr;
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gpWTConfig = nullptr;
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gpWTGetA = nullptr;
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gpWTSetA = nullptr;
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gpWTRestore = nullptr;
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gpWTExtSet = nullptr;
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gpWTExtGet = nullptr;
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gpWTQueueSizeSet = nullptr;
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gpWTDataPeek = nullptr;
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gpWTPacketsGet = nullptr;
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gpWTMgrOpen = nullptr;
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gpWTMgrClose = nullptr;
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gpWTMgrDefContext = nullptr;
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gpWTMgrDefContextEx = nullptr;
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gpWTQueuePacketsEx = nullptr;
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gpWTQueueSizeGet = nullptr;
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}
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//////////////////////////////////////////////////////////////////////////////
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// Purpose
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// Display error to user.
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//
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void ShowError(const std::string &pszErrorMessage_I)
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{
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//TODO: post error message to buffer in Tablet class
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//which in turn can post to TabUI
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//MessageBoxA(NULL, pszErrorMessage_I.c_str(), "Error", MB_OK | MB_ICONERROR);
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}
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//////////////////////////////////////////////////////////////////////////////
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