本文整理汇总了C++中wxDataFormat::GetFormatId方法的典型用法代码示例。如果您正苦于以下问题：C++ wxDataFormat::GetFormatId方法的具体用法？C++ wxDataFormat::GetFormatId怎么用？C++ wxDataFormat::GetFormatId使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类wxDataFormat的用法示例。
在下文中一共展示了wxDataFormat::GetFormatId方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: GetDataSize
size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const
{
if ( format.GetFormatId() == CF_DIB )
{
// create the DIB
ScreenHDC hdc;
// shouldn't be selected into a DC or GetDIBits() would fail
wxASSERT_MSG( !m_bitmap.GetSelectedInto(),
wxT("can't copy bitmap selected into wxMemoryDC") );
// first get the info
BITMAPINFO bi;
if ( !GetDIBits(hdc, (HBITMAP)m_bitmap.GetHBITMAP(), 0, 0,
NULL, &bi, DIB_RGB_COLORS) )
{
wxLogLastError(wxT("GetDIBits(NULL)"));
return 0;
}
return sizeof(BITMAPINFO) + bi.bmiHeader.biSizeImage;
}
else // CF_BITMAP
{
// no data to copy - we don't pass HBITMAP via global memory
return 0;
}
}示例2: SetData
bool wxBitmapDataObject::SetData(const wxDataFormat& format,
size_t size, const void *pBuf)
{
HBITMAP hbmp;
if ( format.GetFormatId() == CF_DIB )
{
// here we get BITMAPINFO struct followed by the actual bitmap bits and
// BITMAPINFO starts with BITMAPINFOHEADER followed by colour info
ScreenHDC hdc;
BITMAPINFO *pbmi = (BITMAPINFO *)pBuf;
BITMAPINFOHEADER *pbmih = &pbmi->bmiHeader;
hbmp = CreateDIBitmap(hdc, pbmih, CBM_INIT,
pbmi + 1, pbmi, DIB_RGB_COLORS);
if ( !hbmp )
{
wxLogLastError(wxT("CreateDIBitmap"));
}
m_bitmap.SetWidth(pbmih->biWidth);
m_bitmap.SetHeight(pbmih->biHeight);
}
else // CF_BITMAP
{
// it's easy with bitmaps: we pass them by handle
hbmp = *(HBITMAP *)pBuf;
BITMAP bmp;
if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
{
wxLogLastError(wxT("GetObject(HBITMAP)"));
}
m_bitmap.SetWidth(bmp.bmWidth);
m_bitmap.SetHeight(bmp.bmHeight);
m_bitmap.SetDepth(bmp.bmPlanes);
}
m_bitmap.SetHBITMAP((WXHBITMAP)hbmp);
wxASSERT_MSG( m_bitmap.IsOk(), wxT("pasting invalid bitmap") );
return true;
}示例3: GetDataHere
bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format,
void *pBuf) const
{
wxASSERT_MSG( m_bitmap.IsOk(), wxT("copying invalid bitmap") );
HBITMAP hbmp = (HBITMAP)m_bitmap.GetHBITMAP();
if ( format.GetFormatId() == CF_DIB )
{
// create the DIB
ScreenHDC hdc;
// shouldn't be selected into a DC or GetDIBits() would fail
wxASSERT_MSG( !m_bitmap.GetSelectedInto(),
wxT("can't copy bitmap selected into wxMemoryDC") );
// first get the info
BITMAPINFO *pbi = (BITMAPINFO *)pBuf;
if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi, DIB_RGB_COLORS) )
{
wxLogLastError(wxT("GetDIBits(NULL)"));
return 0;
}
// and now copy the bits
if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1,
pbi, DIB_RGB_COLORS) )
{
wxLogLastError(wxT("GetDIBits"));
return false;
}
}
else // CF_BITMAP
{
// we put a bitmap handle into pBuf
*(HBITMAP *)pBuf = hbmp;
}
return true;
}