The LoadImage function loads an icon, cursor, or bitmap.
HANDLE LoadImage(
HINSTANCE hinst, |
// handle of the instance that contains the image |
LPCTSTR lpszName, |
// name or identifier of image |
UINT uType, |
// type of image |
int cxDesired, |
// desired width |
int cyDesired, |
// desired height |
UINT fuLoad |
// load flags |
); |
If the hinst parameter is non-NULL and the fuLoad parameter does not include LR_LOADFROMFILE, lpszName is a pointer to a null-terminated string that contains the name of the image resource in the hinst module.
If hinst is NULL and LR_LOADFROMFILE is not specified, the low-order word of this parameter must be the identifier of the OEM image to load. The OEM image identifiers are defined in WINUSER.H and have the following prefixes:
Prefix |
Meaning |
OBM_ |
OEM bitmaps |
OIC_ |
OEM icons |
OCR_ |
OEM cursors |
Windows 95: If the fuLoad parameter includes the LR_LOADFROMFILE value, lpszName is the name of the file that contains the image.
Windows NT: LR_LOADFROMFILE is not supported.
Value |
Meaning |
IMAGE_BITMAP |
Loads a bitmap. |
IMAGE_CURSOR |
Loads a cursor. |
IMAGE_ICON |
Loads an icon. |
Value |
Meaning |
LR_DEFAULTCOLOR |
The default flag; it does nothing. All it means is "not LR_MONOCHROME". |
LR_CREATEDIBSECTION |
When the uType parameter specifies IMAGE_BITMAP, causes the function to return a DIB section bitmap rather than a compatible bitmap. This flag is useful for loading a bitmap without mapping it to the colors of the display device. |
LR_DEFAULTSIZE |
Uses the width or height specified by the system metric values for cursors or icons, if the cxDesired or cyDesired values are set to zero. If this flag is not specified and cxDesired and cyDesired are set to zero, the function uses the actual resource size. If the resource contains multiple images, the function uses the size of the first image. |
LR_LOADFROMFILE |
Loads the image from the file specified by the lpszName parameter. If this flag is not specified, lpszName is the name of the resource. |
LR_LOADMAP3DCOLORS |
Searches the color table for the image and replaces the following shades of gray with the corresponding 3D color: |
Color |
Replaced with |
Dk Gray, RGB(128,128,128) |
COLOR_3DSHADOW |
Gray, RGB(192,192,192) |
COLOR_3DFACE |
Lt Gray, RGB(223,223,223) |
COLOR_3DLIGHT |
LR_LOADTRANSPARENT |
Retrieves the color value of the first pixel in the image and replaces the corresponding entry in the color table with the default window color (COLOR_WINDOW). All pixels in the image that use that entry become the default window color. This value applies only to images that have corresponding color tables. If fuLoad includes both the LR_LOADTRANSPARENT and LR_LOADMAP3DCOLORS values, LRLOADTRANSPARENT takes precedence. However, the color table entry is replaced with COLOR_3DFACE rather than COLOR_WINDOW. |
LR_MONOCHROME |
Loads the image in black and white. |
LR_SHARED |
Shares the image handle if the image is loaded multiple times. If LR_SHARED is not set, a second call to LoadImage for the same resource will load the image again and return a different handle. Do not use LR_SHARED for images that have non-standard sizes, that may change after loading, or that are loaded from a file. |
If the function succeeds, the return value is the handle of the newly loaded image.
If the function fails, the return value is NULL. To get extended error information, call GetLastError.
CopyImage, GetSystemMetrics, LoadBitmap, LoadCursor, LoadIcon
file: /Techref/os/win/api/win32/func/src/f53_13.htm, 11KB, , updated: 2001/6/25 07:22, local time: 2024/8/23 12:07,
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