On 02/08/12 19:28, leowang wrote:
> window->image(Fl_Shared_Image::get("test.bmp"));
>
> But when I run the program in my arm board, it only display white but not the
> test.bmp. I can sure the test.bmp is in the correct position.
> Can anyone tell my why? Thanks.
I would add some error checking to see if test.bmp is
accessible at runtime.
Since you're giving it a relative path, it might not
be able to find the file, or perhaps can't read it
for some other reason, such as the BMP's internal
format. (Perhaps try a jpeg or png.)
To add error checking, try adding this function
to your app:
void CheckIfExists(const char *filename) {
FILE *fp = fopen(filename, "r");
if ( !fp ) {
char cwd[4096];
getcwd(cwd, sizeof(cwd));
if ( filename[0] != '\\' && filename[0] != '/' ) {
fl_alert("Cannot not open '%s' in directory %s: %s",
filename, cwd, strerror(errno));
} else {
fl_alert("Cannot not open '%s': %s\n", filename, strerror(errno));
}
exit(1);
}
}
..then calling it here in your program:
[..]
Fl_Window *window = new Fl_Window(0, 0, 1280, 800);
CheckIfExists("test.bmp"); // <-- ADD THIS LINE
window->image(Fl_Shared_Image::get("test.bmp"));
[..]
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