Being looking for an example in vain to load an image (bmp or jpg) from a folder on c:drive... LoadImage() function loads from resources, which i'm not very clear about either.. Few lines of code would help!
thanx
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Being looking for an example in vain to load an image (bmp or jpg) from a folder on c:drive... LoadImage() function loads from resources, which i'm not very clear about either.. Few lines of code would help!
thanx
Something like:
--Code:HANDLE h;
h = LoadImage(NULL, // hInst
TEXT("blah.jpg"), // lpszName
IMAGE_BITMAP, // utype
0, 0, // cxDesired, cyDesired
LR_DEFAULTCOLOR);
if (!h)
// Error.
...
Mats
Hi Mats, this is what i got from MSDN
This doesn't match the example you gave, please correct me if am wrong...Code:HRESULT LoadImage(LPWSTR pszFileName,
IUnknown *pDirectDraw,
DDSURFACEDESC *pDDSurfaceDesc,
GUID *pFormatID,
REFIID riid,
void **ppDXSurface
);
When you copy the path provided to the start\run menu is the file opened without problems?
Quote:
If the function fails, the return value is NULL. To get extended error information, call GetLastError.
What vart means is that you copy the name of your file to the "Start->Run..." menu on Windows. You would have to edit out the \\ into \ to make it work, but it's a good way to determine that the file is actually there.
I find this a bit suspicious:
--Code:c:\\Quest Projects\\Visual Studio\\Resources\\Resources\\radar_bgrnd.bmp
Mats
Yes, I was trying something out yesterday, and realized that this only works on images that are part of the executable. I ended up using an MFC CImage - but if you don't use MFC for other stuff, then that's no help.
I'm afraid, I don't actually know if Windows native API supports loading bitmaps from a file, and if so, what the API is.
--
Mats
More patience and less haste required(read the docs with a little more care):
Change/OR the last parameter of LoadImage and you should be good to go.Quote:
Originally Posted by msdn, LoadImage
moved the file to the c: drive, and changed the code with no avail...
Error Number is zero this time but LoadImgae still returns null. In fact, when i debug and use the watch window to check value in radarBmp , it saysCode:radarBmp = (HBITMAP)LoadImage( NULL, TEXT("c:\\radar_bgrnd.bmp"),
IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
.. Why is it saying unused as if LoadImage() never assigned any value... Maybe the casting (HBITMAP) is not workingCode:0x00000000 {unused=???}
I don't know what is wrong, but I can eliminate the suspicion of "casting HANDLE to HBITMAP" from the candidates - that should not change the value of the handle, just it's type.
--
Mats