Question

How can I update this progress bar in win32api? You can find the full code here Code is here

hProgress=CreateWindowEx(0, PROGRESS_CLASS, NULL,
                       WS_CHILD | WS_VISIBLE,
                  20, 20, 260, 17,
                  hwnd, NULL, g_hInst, NULL);

Answer 1

The message you are looking for is PBM_SETPOS. The usage of this depends on what the range is currently set to (defaults from 0-100). For example, assuming the default range, setting the position to halfway would be done as so:

SendMessage(hProgress, PBM_SETPOS, 50, 0);

Alternatively, the progress bar can be incremented in steps through PBM_STEPIT. The usage of this depends on what the step increment is (default to 10). For example, assuming the default range and initial position of the progress bar, stepping the position to 10 would be done as so:

SendMessage(hProgress, PBM_STEPIT, 0, 0);