C / C++ / MFC

21-Oct-21 23:57

No, it just means duplicated effort, please use one place only.

CBitmap::LoadBitmap help

ForNow18-Oct-21 15:55

18-Oct-21 15:55

I am trying to load a bit map its in my res folder in fact I have also copied it folder where my .exe is it fail to load

Here is My rc statement

IDB_BITMAP1             BITMAP                  "res\\bitmap1.bmp"

and I do a CBitmap.LoadBitmap(IDB_BITMAP1); The return code is 0 The Documentations says

Quote:
by the ID number in nIDResource from the application's executable file.

does that mean I have to link the application a certain way

thanks

Victor Nijegorodov18-Oct-21 20:33

18-Oct-21 20:33

Are you sure the bitmap IDB_BITMAP1 is really included in your .exe? (try to load the .exe as a resource in VS and proof it).
Did you try to use LoadImage instead?
What does the GetLastError return if the loading fails?

ForNow19-Oct-21 1:59

19-Oct-21 1:59

What do you mean 'included in your .exe' I did try the load image and it failed

I am not really sure what you mean by 'try to load the .exe as a resource' does the bitmap have to be linked into the .exe

Victor Nijegorodov19-Oct-21 2:50

19-Oct-21 2:50

ForNow wrote:
I am not really sure what you mean by 'try to load the .exe as a resource' does the bitmap have to be linked into the .exe

Just open your VS, then Menu -> File -> Open -> find in the open file dialog (File Explorer) your .exe file -> open it!
Then you will see the tree with all the embedded resources. Just navigate to the Bitmap hive and ensure that the bitmap with your bitmap ID does exist!

ForNow19-Oct-21 3:22

19-Oct-21 3:22

Yes it see it there are the resource numbers of my bitmaps my questions is then the following

Quote:
BREAKPOINT BITMAP "C:\\DriveRichEdit\\DriveRichEdit\\DriveRichEdit\\res\\bullet_red.bmp"

IDR_MAINFRAME BITMAP "res\\Toolbar.bmp"

IDB_BITMAP1 BITMAP "res\\bitmap1.bmp"

I have tried various strings 1) full path name of where the bitmap resides as indicated by my first entry 2) partial as indicated by my second entry "res\\Toolbar.bmp" would you know the correct entry

thanks

Victor Nijegorodov19-Oct-21 5:20

19-Oct-21 5:20

ForNow wrote:
would you know the correct entry

According your OP it should be:

ForNow wrote:

Here is My rc statement

IDB_BITMAP1             BITMAP                  "res\\bitmap1.bmp"

ForNow19-Oct-21 5:32

19-Oct-21 5:32

I re-checked the doc and it say I can put in the full path name of the bitmap going to do that I’ll also do a getlasterror if RC _!= 0

Thanks

Richard MacCutchan19-Oct-21 6:41

19-Oct-21 6:41

You should not need to as the location is only required by the compiler when it builds the executable. Part of the build process is to embed all resources into the final executable. You can check it by getting hold of one of the many free resource editors available online.

ForNow19-Oct-21 6:51

19-Oct-21 6:51

so the bitmap is in the exe I google and see a product Resource tuner maybe i should try it see if it finds the bitap and maybe the problem is I didn't link it in right with the res file

thanks

Richard MacCutchan19-Oct-21 8:01

Re: CBitmap::LoadBitmap Strange Result From CIMage::Load and CBitmap::Attach

19-Oct-21 8:01

I have never encountered a project where the resources did not get included correctly. In fact I just ran a quick test and it worked fine.

ForNow19-Oct-21 12:10

Re: CBitmap::LoadBitmap Strange Result From CIMage::Load and CBitmap::Attach

19-Oct-21 12:10

Did a Cimage load the HRESULT was 0 did CBitmap::Attach (there is not documentation on this) but return code was 1 when I looked at the n_hObject in VS debugger it had high order X'FF' the handle was FFFFFFFF88052070 never saw a resource handle with high order X'FF' ITS usually zeros

Victor Nijegorodov19-Oct-21 21:42

Re: CBitmap::LoadBitmap Strange Result From CIMage::Load and CBitmap::Attach

19-Oct-21 21:42

"the HRESULT was 0" (S_OK) means the function completed successfully.
"(there is not documentation on CBitmap::Attach)". However, there is a documentation on its base class method: CGdiObject Class | Microsoft Docs

Richard MacCutchan19-Oct-21 22:32

Re: CBitmap::LoadBitmap Strange Result From CIMage::Load and CBitmap::Attach

19-Oct-21 22:32

I suspect that whatever results you got are not valid, since you need to pass a GDI object to the Attach call in the first place. So what were you trying to attach?

As I suggested earlier you definitely need to find out whether this image actually exists in your executable's resources, and if not, why not?

Richard MacCutchan20-Oct-21 3:14

Re: CBitmap::LoadBitmap Strange Result From CIMage::Load and CBitmap::Attach

20-Oct-21 3:14

As I have mentioned previously I do not have MFC. But recreating what you are trying to do in pure Win32 (which is what MFC does under the covers) I have successfully loaded and displayed a bitmap resource.

ForNow20-Oct-21 3:24

Re: CBitmap::LoadBitmap Strange Result From CIMage::Load and CBitmap::Attach

20-Oct-21 3:24

thanks for your help I re-linked my app and after I did the attach the HANDLE had leading zeros and displayed I played around with BitBlt and StreachBlt

One problem the RED bullet is placed in the middle of a rectangle the color of the rectangle is black.

So my static control is gray. and there is a black squared with a red bullet.

Is there anyway to have the black "background color of the bitmap rectangle" be the the same as the background of the destination control

I have tried creating a brush with that control color selecting/selectobjct and CDC::Fillrect and FillSolidRect

Doesn't seem to have any effect

Thanks

Victor Nijegorodov20-Oct-21 4:07

Re: CBitmap::LoadBitmap Strange Result From CIMage::Load and CBitmap::Attach "used TransparentBLT thank you all"

20-Oct-21 4:07

Try to use icon (with transparent background) instead.

ForNow20-Oct-21 8:46