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This structure supports software control of a Windows CE-based platform's display contrast. This structure is used in conjunction with GWE's ExtEscapeand the display driver's DrvEscapefunctions.
struct ContrastCmdInputParm{
int
command;
int
parm; };
Members
- command
- The contrast command. Available contrast commands are:
Contrast Command Meaning CONTRAST_CMD_GET Gets the current contrast. The parmmember is ignored. The return value from DrvEscapeshould be the current contrast setting. CONTRAST_CMD_SET Sets the current contrast. The parmmember contains the desired contrast setting. The return value from DrvEscapeshould be the actual contrast setting after the operation. CONTRAST_CMD_INCREASE Increases the contrast by the amount specified in parm. The return value from DrvEscapeshould be the resulting contrast setting. CONTRAST_CMD_DECREASE Decreases the contrast by the amount specified in parm. The return value from DrvEscapeshould be the resulting contrast setting. CONTRAST_CMD_DEFAULT Applies the default contrast setting. The parmmember is ignored. The return value from DrvEscapeshould be the actual contrast setting after the operation. CONTRAST_CMD_MAX Applies the maximum contrast setting. The return value from DrvEscapeshould be the actual contrast setting after the operation. - parm
- A value that applies to some of the contrast commands.
Remarks
For more information, see Display Driver Escape Codes.
Requirements
Runs on Versions Defined in Include Link to Windows CE OS 2.12 and later
Last updated on Tuesday, July 13, 2004