WIN32 : PictureBox Does Not Display Picture - c

Question

I am using WIN32 and C programming to do a window dialog in Visual Studio 2008 in the Windows CE OS using Windows 5.0 Mobile SDK. I insert my two picture boxes using the Resource Dialog Editor and ensure they are allocated IDs in the window resource. I am using SHLoadDIBitmap to display the image. My code compiles without errors but when I run the program, no images appear in the two picture boxes. What am I doing wrong?
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#include <windowsx.h>
#include <winuser.h>
#include "ScanCAPI.h"
#include "resource.h"
#pragma comment(lib, "Kernel32.lib")
HBITMAP hImage;
HBITMAP hImage1;
.
.
.
switch(uMsg)
{
case WM_INITDIALOG:
hImage = SHLoadDIBitmap(TEXT("\\My Documents\\image1.bmp"));
hImage1 = SHLoadDIBitmap(TEXT("\\My Documents\\image2.bmp"));
if (hImage==NULL) {
MessageBox(0,"hImage returned null",0,0);
} else {
hnd_pic1 = GetDlgItem(hwnd,IDC_STATIC8);
SendMessage(hnd_pic1, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hImage);
}
hnd_pic2 = GetDlgItem(hwnd,IDC_STATIC9);
if (hImage1==NULL) {
MessageBox(0,"hImage1 returned null",0,0);
} else {
SendMessage(hnd_pic2, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hImage1);
}

Answer 1

The following code sample works for me on Windows 10 (SHLoadDIBitmap API seems not valid for Windows 10. I use LoadImage API instead.). You can refer to.
C++ code in dialog box procedure:
case WM_INITDIALOG:
hImage = LoadImage(NULL, L"full_path_to\\image3.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE);
if (NULL == hImage)
errCode = GetLastError();
hwd_static_img = GetDlgItem(hDlg, IDC_STATIC6);
SendMessage(hwd_static_img, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM)hImage);
return (INT_PTR)TRUE;
Resource script in project_name.rc file:
CONTROL "",IDC_STATIC6,"Static", SS_BITMAP,37,133,136,109
Two notes:
Make sure the image file is a valid bitmap file. For example, you can draw a picture and save as a bitmap using mspaint.exe. If you rename a file from .PNG to .BMP, LoadImage will return a NULL handle but GetLastError return 0 which indicate no error.
Make sure set SS_BITMAP static control style for picture control (IDC_STATIC6).
BTW, no need to put image file in same directory with your project or EXE. Specify the valid full path of the image file will work.