LoadImage Problem

[TEST]

I am saving images out from a camera to bmp using directshow. I can open
these images in mspaint or any other image program without a problem.

Using:
HBITMAP h_Bitmap;
h_Bitmap = (HBITMAP)LoadIm age(hInstance, L"C:\\DELETE\\1 .bmp", IMAGE_BITMAP,
0, 0, LR_LOADFROMFILE );

h_Bitmap is staying null. GetLastError is returning 0. I can successfully
load a bitmap created with mspaint without a problem using the method above
so I have to think their is something extra inside the bitmap cauing issues.
Looking at the properties of a mspaint bitmap and the one I exported the
only differences I see is that Bit Depth is 32 for the camera and 24 for the
one using mspaint.


I can also load these bitmaps with managed code like

Bitmap obj_Bitmap1 = Bitmap::FromFil e("C:\\DELETE\\ 1.bmp");
mobj_PictureBox->Image = Image::FromHbit map(obj_Bitmap1 .GetHbitmap());

which works fine. Any idea's why this would happen or how I can go about
fixing or finding out whats going on?

[David Lowndes]

Re: LoadImage Problem

>h_Bitmap = (HBITMAP)LoadIm age(hInstance, L"C:\\DELETE\\1 .bmp", IMAGE_BITMAP,

>0, 0, LR_LOADFROMFILE );

The hInst parameter should be NULL

Dave

[TEST]

Re: LoadImage Problem

Thanks for the reply Dave.

Tried it with NULL also. Same result. It acts like its loading fine
w/getlasterror returning 0. Any other idea?


"David Lowndes" <DavidL@example .invalidwrote in message
news:kcuu84h50s 2us55b3akhddprm saurtacj5@4ax.c om...

h_Bitmap = (HBITMAP)LoadIm age(hInstance, L"C:\\DELETE\\1 .bmp",
IMAGE_BITMAP,
>>0, 0, LR_LOADFROMFILE );

>
The hInst parameter should be NULL
>
Dave

[TEST]

Re: LoadImage Problem

Got it. I was somehow corrupting the bitmap when I wrote it to disk. This
has been corrected. FYI 5 years from now when someone pulls this, I found
out for sure by checking the bitmapfileheade r

FILE *file;
file = fopen("C:\\imag ing\\result.bmp ", "rb");
BITMAPFILEHEADE R bitmapFileHeade r;
size_t read = fread(&bitmapFi leHeader, sizeof(BITMAPFI LEHEADER), 1, file);
fclose(file);

bfType should be 19778 per the doc's

http://msdn.microsoft.com/en-us/library/ms532321.aspx

"TEST" <test@test.comw rote in message
news:%23XzGPrb8 IHA.2548@TK2MSF TNGP05.phx.gbl. ..

Thanks for the reply Dave.
>
Tried it with NULL also. Same result. It acts like its loading fine
w/getlasterror returning 0. Any other idea?
>
>
"David Lowndes" <DavidL@example .invalidwrote in message
news:kcuu84h50s 2us55b3akhddprm saurtacj5@4ax.c om...

>h_Bitmap = (HBITMAP)LoadIm age(hInstance, L"C:\\DELETE\\1 .bmp",
>IMAGE_BITMAP ,
>>>0, 0, LR_LOADFROMFILE );

>>
>The hInst parameter should be NULL
>>
>Dave

>
>