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en:docs:fapi:mousetscalefact [2021/10/06 14:28] – created prokushev | en:docs:fapi:mousetscalefact [2021/11/04 13:13] (current) – prokushev | ||
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+ | {{page> | ||
+ | |||
+ | ====== MouSetScaleFact ====== | ||
+ | |||
This call assigns to the current mouse device driver a new pair of 1-word scaling factors. | This call assigns to the current mouse device driver a new pair of 1-word scaling factors. | ||
- | ==Syntax== | + | ===== Syntax ===== |
+ | <code c> | ||
| | ||
+ | </ | ||
- | ==Parameters== | + | ===== Parameters ===== |
- | ;ScaleStruct (P[[SCALEFACT]]) - input : Address of the control block structure that contains the current row and column coordinate scaling factors. | + | |
- | ;DeviceHandle (HMOU) - input : Handle of the mouse device from a previous MouOpen. | + | |
+ | | ||
+ | |||
+ | ===== Return Code ===== | ||
+ | |||
+ | |||
+ | rc (USHORT) - return: | ||
+ | |||
+ | *0 NO_ERROR | ||
+ | *385 ERROR_MOUSE_NO_DEVICE | ||
+ | *387 ERROR_MOUSE_INV_PARMS | ||
+ | *466 ERROR_MOU_DETACHED | ||
+ | *501 ERROR_MOUSE_NO_CONSOLE | ||
+ | *505 ERROR_MOU_EXTENDED_SG | ||
+ | |||
+ | ===== Remarks ===== | ||
- | ==Return Code== | ||
- | ;rc (USHORT) - return: | ||
- | *0 NO_ERROR | ||
- | *385 ERROR_MOUSE_NO_DEVICE | ||
- | *387 ERROR_MOUSE_INV_PARMS | ||
- | *466 ERROR_MOU_DETACHED | ||
- | *501 ERROR_MOUSE_NO_CONSOLE | ||
- | *505 ERROR_MOU_EXTENDED_SG | ||
- | ==Remarks== | ||
MouSetScaleFact sets the mickey-to-pixel ratio for mouse motion. The row scale and column scale ratios specify a number of mickeys for each 8 pixels. The default value for the row scale is 16 mickeys for each 8 pixels. The default value for the column scale is 8 mickeys to 8 pixels. | MouSetScaleFact sets the mickey-to-pixel ratio for mouse motion. The row scale and column scale ratios specify a number of mickeys for each 8 pixels. The default value for the row scale is 16 mickeys for each 8 pixels. The default value for the column scale is 8 mickeys to 8 pixels. | ||
The number of pixels moved does not have to correspond 1-to-1 with the number of mickeys the mouse moves. The scaling factor defines a sensitivity for the mouse that is a ratio of the number of mickeys required to move the cursor 8 pixels on the screen. The sensitivity determines at what rate the cursor moves on the screen. | The number of pixels moved does not have to correspond 1-to-1 with the number of mickeys the mouse moves. The scaling factor defines a sensitivity for the mouse that is a ratio of the number of mickeys required to move the cursor 8 pixels on the screen. The sensitivity determines at what rate the cursor moves on the screen. | ||
- | ==Bindings== | + | ===== Bindings |
- | ===C=== | + | |
- | <PRE> | + | ====C==== |
+ | <code c> | ||
typedef struct _SCALEFACT { /* mousc */ | typedef struct _SCALEFACT { /* mousc */ | ||
USHORT rowScale; | USHORT rowScale; | ||
Line 38: | Line 51: | ||
USHORT | USHORT | ||
- | </PRE> | + | </code> |
- | ===MASM=== | + | ====MASM==== |
- | <PRE> | + | <code asm> |
SCALEFACT struc | SCALEFACT struc | ||
mousc_rowScale | mousc_rowScale | ||
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Returns WORD | Returns WORD | ||
- | </PRE> | + | </code> |
+ | |||
+ | {{page> | ||
- | [[Category: | ||