X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/552a0ebdb279ab8ddafc63ea5e64db87c92da238..462bc04863a27a56a75faf72c20977a2e958c2a5:/include/wx/msw/private.h diff --git a/include/wx/msw/private.h b/include/wx/msw/private.h index 094ab1fcd1..3cda5809f9 100644 --- a/include/wx/msw/private.h +++ b/include/wx/msw/private.h @@ -20,6 +20,13 @@ #include + +#if defined (__WXWINCE__) + #include // RGB, COLORREF + #include // Global Namespaces ::GetKeyState, ::GetWindowRect +#endif + + #ifdef __WXMICROWIN__ // Extra prototypes and symbols not defined by MicroWindows #include "wx/msw/microwin.h" @@ -176,22 +183,6 @@ WXDLLEXPORT_DATA(extern HFONT) wxSTATUS_LINE_FONT; extern LONG APIENTRY _EXPORT wxSubclassedGenericControlProc(WXHWND hWnd, WXUINT message, WXWPARAM wParam, WXLPARAM lParam); -// --------------------------------------------------------------------------- -// constants which might miss from some compilers' headers -// --------------------------------------------------------------------------- - -#if !defined(__WIN32__) && !defined(WS_EX_CLIENTEDGE) - #define WS_EX_CLIENTEDGE 0 -#endif - -#if defined(__WIN32__) && !defined(WS_EX_CLIENTEDGE) - #define WS_EX_CLIENTEDGE 0x00000200L -#endif - -#ifndef ENDSESSION_LOGOFF - #define ENDSESSION_LOGOFF 0x80000000 -#endif - // --------------------------------------------------------------------------- // useful macros and functions // --------------------------------------------------------------------------- @@ -206,6 +197,7 @@ extern LONG APIENTRY _EXPORT #if wxUSE_GUI #include +#include // make conversion from wxColour and COLORREF a bit less painful inline COLORREF wxColourToRGB(const wxColour& c) @@ -271,6 +263,17 @@ extern void PixelToHIMETRIC(LONG *x, LONG *y); // to invert the mask each time we pass one/get one to/from Windows extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w = 0, int h = 0); +// Creates an icon or cursor depending from a bitmap +// +// The bitmap must be valid and it should have a mask. If it doesn't, a default +// mask is created using light grey as the transparent colour. +extern HICON wxBitmapToHICON(const wxBitmap& bmp); + +// Same requirments as above apply and the bitmap must also have the correct +// size. +extern +HCURSOR wxBitmapToHCURSOR(const wxBitmap& bmp, int hotSpotX, int hotSpotY); + // get (x, y) from DWORD - notice that HI/LOWORD can *not* be used because they // will fail on system with multiple monitors where the coords may be negative // @@ -283,12 +286,18 @@ extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w = 0, int h = 0); // get the current state of SHIFT/CTRL keys inline bool wxIsShiftDown() { - return (::GetKeyState(VK_SHIFT) & 0x100) != 0; +// return (::GetKeyState(VK_SHIFT) & 0x100) != 0; + // Returns different negative values on WinME and WinNT, + // so simply test for negative value. + return ::GetKeyState(VK_SHIFT) < 0; } inline bool wxIsCtrlDown() { - return (::GetKeyState(VK_CONTROL) & 0x100) != 0; +// return (::GetKeyState(VK_CONTROL) & 0x100) != 0; + // Returns different negative values on WinME and WinNT, + // so simply test for negative value. + return ::GetKeyState(VK_CONTROL) < 0; } // wrapper around GetWindowRect() and GetClientRect() APIs doing error checking @@ -327,6 +336,20 @@ inline RECT wxGetClientRect(HWND hwnd) // small helper classes // --------------------------------------------------------------------------- +// a template to make initializing Windows styructs less painful: it zeroes all +// the struct fields and also sets cbSize member to the correct value (and so +// can be only used with structures which have this member...) +template +struct WinStruct : public T +{ + WinStruct() + { + ::ZeroMemory(this, sizeof(T)); + cbSize = sizeof(T); + } +}; + + // create an instance of this class and use it as the HDC for screen, will // automatically release the DC going out of scope class ScreenHDC @@ -339,20 +362,24 @@ public: private: HDC m_hdc; + + DECLARE_NO_COPY_CLASS(ScreenHDC) }; -// the same as ScreenHDC but for memory DCs: creates the HDC in ctor and -// destroys it in dtor +// the same as ScreenHDC but for memory DCs: creates the HDC compatible with +// the given one (screen by default) in ctor and destroys it in dtor class MemoryHDC { public: - MemoryHDC() { m_hdc = ::CreateCompatibleDC(NULL); } - ~MemoryHDC() { ::DeleteObject(m_hdc); } + MemoryHDC(HDC hdc = 0) { m_hdc = ::CreateCompatibleDC(hdc); } + ~MemoryHDC() { ::DeleteDC(m_hdc); } operator HDC() const { return m_hdc; } private: HDC m_hdc; + + DECLARE_NO_COPY_CLASS(MemoryHDC) }; // a class which selects a GDI object into a DC in its ctor and deselects in @@ -371,6 +398,47 @@ public: private: HDC m_hdc; HGDIOBJ m_hgdiobj; + + DECLARE_NO_COPY_CLASS(SelectInHDC) +}; + +// when working with global pointers (which is unfortunately still necessary +// sometimes, e.g. for clipboard) it is important to unlock them exactly as +// many times as we lock them which just asks for using a "smart lock" class +class GlobalPtr +{ +public: + GlobalPtr(HGLOBAL hGlobal) : m_hGlobal(hGlobal) + { + m_ptr = ::GlobalLock(hGlobal); + if ( !m_ptr ) + { + wxLogLastError(_T("GlobalLock")); + } + } + + ~GlobalPtr() + { + if ( !::GlobalUnlock(m_hGlobal) ) + { +#ifdef __WXDEBUG__ + // this might happen simply because the block became unlocked + DWORD dwLastError = ::GetLastError(); + if ( dwLastError != NO_ERROR ) + { + wxLogApiError(_T("GlobalUnlock"), dwLastError); + } +#endif // __WXDEBUG__ + } + } + + operator void *() const { return m_ptr; } + +private: + HGLOBAL m_hGlobal; + void *m_ptr; + + DECLARE_NO_COPY_CLASS(GlobalPtr) }; // --------------------------------------------------------------------------- @@ -418,9 +486,7 @@ private: // global data // --------------------------------------------------------------------------- -WXDLLEXPORT_DATA(extern wxChar*) wxBuffer; - -WXDLLEXPORT_DATA(extern HINSTANCE) wxhInstance; +WXDLLIMPEXP_DATA_BASE(extern HINSTANCE) wxhInstance; // --------------------------------------------------------------------------- // global functions