// make conversion from wxColour and COLORREF a bit less painful
inline COLORREF wxColourToRGB(const wxColour& c)
{
- return RGB(c.Red(), c.Green(), c.Blue());
+ return PALETTERGB(c.Red(), c.Green(), c.Blue());
}
inline void wxRGBToColour(wxColour& c, COLORREF rgb)
class ScreenHDC
{
public:
- ScreenHDC() { m_hdc = GetDC(NULL); }
- ~ScreenHDC() { ReleaseDC(NULL, m_hdc); }
- operator HDC() const { return m_hdc; }
+ ScreenHDC() { m_hdc = ::GetDC(NULL); }
+ ~ScreenHDC() { ::ReleaseDC(NULL, m_hdc); }
+
+ operator HDC() const { return m_hdc; }
+
+private:
+ HDC m_hdc;
+};
+
+// the same as ScreenHDC but for memory DCs: creates the HDC in ctor and
+// destroys it in dtor
+class MemoryHDC
+{
+public:
+ MemoryHDC() { m_hdc = ::CreateCompatibleDC(NULL); }
+ ~MemoryHDC() { ::DeleteObject(m_hdc); }
+
+ operator HDC() const { return m_hdc; }
private:
HDC m_hdc;
};
+// a class which selects a GDI object into a DC in its ctor and deselects in
+// dtor
+class SelectInHDC
+{
+public:
+ SelectInHDC(HDC hdc, HGDIOBJ hgdiobj) : m_hdc(hdc)
+ { m_hgdiobj = ::SelectObject(hdc, hgdiobj); }
+
+ ~SelectInHDC() { ::SelectObject(m_hdc, m_hgdiobj); }
+
+ // return true if the object was successfully selected
+ operator bool() const { return m_hgdiobj != 0; }
+
+private:
+ HDC m_hdc;
+ HGDIOBJ m_hgdiobj;
+};
+
// ---------------------------------------------------------------------------
// macros to make casting between WXFOO and FOO a bit easier: the GetFoo()
// returns Foo cast to the Windows type for oruselves, while GetFooOf() takes
#define GetHfont() ((HFONT)GetHFONT())
#define GetHfontOf(font) ((HFONT)(font).GetHFONT())
+#define GetHpalette() ((HPALETTE)GetHPALETTE())
+#define GetHpaletteOf(pal) ((HPALETTE)(pal)->GetHPALETTE())
+
#define GetHrgn() ((HRGN)GetHRGN())
#define GetHrgnOf(rgn) ((HRGN)(rgn).GetHRGN())
// is, for mainly historical reasons, signed)
WXDLLEXPORT extern WXWORD wxGetWindowId(WXHWND hWnd);
+// check if hWnd's WNDPROC is wndProc. Return true if yes, false if they are different
+extern bool wxCheckWindowWndProc(WXHWND hWnd, WXFARPROC wndProc);
+
// Does this window style specify any border?
inline bool wxStyleHasBorder(long style)
{