References ▼
typedef struct{long lGamma;BOOL bGammaEqualize;long lDGamma;BOOL bDGammaEqualize;} GAMMA_ATTRIBUTES;
Describes gamma correction attributes.
Member |
Description |
lGamma |
Gamma correction value, range between 1 and 500. |
bGammaEqualize |
TRUE to enable gamma correction. |
lDGamma |
Default Gamma correction value. Original default value is 1.0 |
bDGammaEqualize |
Default gamma correction Enable flag. |
None.
Determines whether the filter input pin is currently connected.
S_OK if connected, S_FALSE otherwise.
None.
Determines whether the filter output pin is currently connected.
S_OK if connected, S_FALSE otherwise.
gamma_attributes |
a valid pointer to a GAMMA_ATTRIBUTES structure. |
Gets the current gamma correction attributes.
S_OK if successful, S_FALSE otherwise.
gamma_attributes |
a GAMMA_ATTRIBUTES structure that contains gamma correction attributes to set. |
Sets the gamma correction attributes. If the gamma value is out of the permitted range, it is clipped.
S_OK if successful, S_FALSE otherwise.
plInWidth |
A valid pointer to a long variable to be updated with the input media width. NULL can be passed if this value is not needed. |
plInHeight |
A valid pointer to a long variable to be updated with the input media height. NULL can be passed if this value is not needed. |
plOutWidth |
A valid pointer to a long variable to be updated with the output media width. NULL can be passed if this value is not needed. |
plOutHeight |
A valid pointer to a long variable to be updated with the output media height. NULL can be passed if this value is not needed. |
Retrieves the current media dimensions.
S_OK if successful, S_FALSE otherwise.
pInBitCount |
A valid pointer to an integer that will receive the input media bits per pixel value. NULL can be passed if this value is not needed. |
pPBitCount |
A valid pointer to an integer that will receive the output media bits per pixel value. NULL can be passed if this value is not needed. |
Gets the bits per pixel of the current connected input and output media formats.
S_OK if successful, S_FALSE otherwise.