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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| user32.lib
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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LookupIconIdFromDirectory
The LookupIconIdFromDirectory function searches through icon or cursor data for the icon or cursor that
best fits the current display device.
int LookupIconIdFromDirectory(
PBYTE presbits,
| // address of resource data
| BOOL fIcon
| // look for icon or cursor
| );
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Parameters
presbits
Points to the icon or cursor directory data. Because this function does not
validate the resource data, it causes a general protection (GP) fault or returns
an undefined value if presbits is not pointing to valid resource data.
fIcon
Specifies whether an icon or a cursor is sought. If this parameter is TRUE,
the function is searching for an icon; if the parameter is FALSE, the function is
searching for a cursor.
Return Values
If the function succeeds, the return value is an integer resource identifier
for the icon or cursor that best fits the current display device.
Remarks
A resource file of type RT_GROUP_ICON (RT_GROUP_CURSOR indicates cursors)
contains icon (or cursor) data in several device-dependent and device-independent
formats. LookupIconIdFromDirectory searches the resource file for the icon (or cursor) that best fits the
current display device and returns its integer identifier. The FindResource and FindResourceEx functions use the MAKEINTRESOURCE macro with this identifier to locate the resource in the module.
The icon directory is loaded from a resource file with resource type
RT_GROUP_ICON (or RT_GROUP_CURSOR for cursors), and an integer resource name for the
specific icon to be loaded. LookupIconIdFromDirectory returns an integer identifier that is the resource name of the icon that best
fits the current display device.
The LoadIcon, LoadCursor, and LoadImage (in Windows 95) functions use this function to search the specified resource
data for the icon or cursor that best fits the current display device.
See Also
CreateIconFromResource, CreateIconIndirect, FindResource, FindResourceEx, GetIconInfo, LoadCursor, LoadIcon, LoadImage, LookupIconIdFromDirectoryEx, MAKEINTRESOURCE
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Win32 Programmer's Reference (win32.hlp)
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