本文整理汇总了C++中gdiplus::Image::GetPropertyItem方法的典型用法代码示例。如果您正苦于以下问题：C++ Image::GetPropertyItem方法的具体用法？C++ Image::GetPropertyItem怎么用？C++ Image::GetPropertyItem使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类gdiplus::Image的用法示例。
在下文中一共展示了Image::GetPropertyItem方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ReadImageProperty
BOOL ReadImageProperty(const TCHAR *lpszImage, PROPID propId, TCHAR *szProperty, int cchMax)
{
Gdiplus::GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR token;
Gdiplus::Status status = GdiplusStartup(&token, &gdiplusStartupInput, NULL);
if(status != Gdiplus::Ok)
{
return FALSE;
}
BOOL bSuccess = FALSE;
/* This object needs to be
deleted before GdiplusShutdown
is called. If it were stack
allocated, it would go out of
scope _after_ the call to
GdiplusShutdown. By allocating
it on the heap, the lifetime
can be directly controlled. */
Gdiplus::Image *image = new Gdiplus::Image(lpszImage, FALSE);
if(image->GetLastStatus() == Gdiplus::Ok)
{
if(propId == PropertyTagImageWidth)
{
bSuccess = TRUE;
StringCchPrintf(szProperty, cchMax, _T("%u pixels"), image->GetWidth());
}
else if(propId == PropertyTagImageHeight)
{
bSuccess = TRUE;
StringCchPrintf(szProperty, cchMax, _T("%u pixels"), image->GetHeight());
}
else
{
UINT size = image->GetPropertyItemSize(propId);
if(size != 0)
{
Gdiplus::PropertyItem *propertyItem = reinterpret_cast<Gdiplus::PropertyItem *>(malloc(size));
if(propertyItem != NULL)
{
status = image->GetPropertyItem(propId, size, propertyItem);
if(status == Gdiplus::Ok)
{
if(propertyItem->type == PropertyTagTypeASCII)
{
int iRes = MultiByteToWideChar(CP_ACP, 0, reinterpret_cast<LPCSTR>(propertyItem->value), -1,
szProperty, cchMax);
if(iRes != 0)
{
bSuccess = TRUE;
}
}
}
free(propertyItem);
}
}
}
}
delete image;
Gdiplus::GdiplusShutdown(token);
return bSuccess;
}