HBITMAP LoadTransparentImage(wchar_t *fileName)
{
if (m_pImageFactory != NULL && IsFileExists(fileName) == TRUE)
{
IImage* pImage = NULL;
IBitmapImage* pBitmapImage = NULL;
ImageInfo imageInfo;
BitmapData bitmapData;
m_pImageFactory->CreateImageFromFile(fileName, &pImage);
m_pImageFactory->CreateBitmapFromImage(pImage, 0, 0,
PixelFormat32bppPARGB, InterpolationHintNearestNeighbor,
&pBitmapImage);
pImage->GetImageInfo(&imageInfo);
RECT rect = {0, 0, imageInfo.Width, imageInfo.Height};
pBitmapImage->LockBits(&rect, ImageLockModeRead,
PixelFormat32bppPARGB, &bitmapData);
return CreateBitmap( imageInfo.Width, imageInfo.Height, 1,
GetPixelFormatSize(imageInfo.PixelFormat), bitmapData.Scan0);
}
return NULL;
};
WMAlphaBitmap::WMAlphaBitmap(IImage* img)
{
#if defined(_WIN32_WCE)
IImagingFactory *pImgFactory = NULL;
mWidth = 0;
mHeight = 0;
mImgBuf = NULL;
HRESULT co_init_result = CoInitializeEx(NULL, 0/*COINIT_APARTMENTTHREADED*/);
if ( (co_init_result == S_OK) || (co_init_result == S_FALSE) ) {
msg_out("CoInitializeEx OK");
if (SUCCEEDED(CoCreateInstance (CLSID_ImagingFactory,
NULL,
CLSCTX_INPROC_SERVER,
IID_IImagingFactory,
(void **)&pImgFactory)))
{
ImageInfo imgInfo;
img->GetImageInfo(&imgInfo);
mWidth = imgInfo.Width;
mHeight = imgInfo.Height;
IBitmapImage* pBitmap = 0;
if ( SUCCEEDED(pImgFactory->CreateBitmapFromImage( img,
mWidth,
mHeight,
PixelFormat32bppARGB,
InterpolationHintDefault,
&pBitmap) )) {
msg_out("Create Bitmap OK");
RECT rc = { 0, 0, mWidth, mHeight};
BitmapData bitmap_data;
if ( SUCCEEDED(pBitmap->LockBits( &rc,
ImageLockModeRead,
PixelFormatDontCare,
&bitmap_data))) {
//
msg_out("Lock Bits OK");
void* src_buf = bitmap_data.Scan0;
int stride = bitmap_data.Stride;
int w = bitmap_data.Width;
int h = bitmap_data.Height;
mImgBuf = new unsigned int[w*h];
if (mImgBuf != 0) {
msg_out("Img buffer allocated OK");
// start convert
{
unsigned int* dst = mImgBuf;
unsigned int* src;
int x;
int y;
for (y = 0 ; y < h; y++) {
if (stride < 0) {
src = (unsigned int*)(((unsigned char*)src_buf) + (h-1-y)*(-stride));
}
else {
src = (unsigned int*)(((unsigned char*)src_buf) + y*(stride));
}
for (x = w; x > 0; x--) {
*dst++ = *src++;
}
}
}
msg_out("Convert to img buffer finished OK");
// finish convert
}
else {
err_out("Image Buffer not allocated !");
}
pBitmap->UnlockBits(&bitmap_data);
}
else {
err_out("Bitmap bits not locked !");
}
pBitmap->Release();
}
pImgFactory->Release();
}
CoUninitialize();
}
else {
err_out("CoInitializeEx not initialized !");
}
#endif //#if defined(_WIN32_WCE)
}
