WindowsIMM.hpp

 
//
// TGUI - Texus' Graphical User Interface
// Copyright (C) 2012-2024 Bruno Van de Velde (vdv_b@tgui.eu)
//
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// In no event will the authors be held liable for any damages arising from the use of this software.
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// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
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//
 
 
#ifndef TGUI_WINDOWS_IMM_HPP
#define TGUI_WINDOWS_IMM_HPP
 
#include <TGUI/Vector2.hpp>
 
#include <TGUI/extlibs/IncludeWindows.hpp>
 
 
TGUI_MODULE_EXPORT namespace tgui
{
 class TGUI_API WindowsIMM
 {
 public:
 // @brief Loads the imm32.dll and the functions that this class might access
 //
 // If this function is called multiple times then the resources are reused.
 //
 // @warning Every call to initialize() must have a corresponding call to release()
 static void initialize();
 
 
 // @brief Releases the resources from imm32.dll
 //
 // A reference counter was incremented on each initialize() call, this function does nothing until the count reaches 0.
 //
 // @warning This function must not be called without calling initialize() first
 static void release();
 
 
 static void setCandidateWindowPosition(HWND hWnd, Vector2f caretPos);
 
 
 private:
 
 using ImmGetContextFunc = HIMC(WINAPI*)(HWND);
 using ImmSetCompositionWindowFunc = BOOL(WINAPI*)(HIMC, LPCOMPOSITIONFORM);
 using ImmReleaseContextFunc = BOOL(WINAPI*)(HWND, HIMC);
 
 static ImmGetContextFunc m_dllImmGetContext;
 static ImmSetCompositionWindowFunc m_dllImmSetCompositionWindow;
 static ImmReleaseContextFunc m_dllImmReleaseContext;
 
 static HMODULE m_dllImmModuleHandle;
 
 static unsigned int m_referenceCount;
 };
 
}
 
 
#endif // TGUI_WINDOWS_IMM_HPP