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Related Transactions
Example
The SetZoom transaction scales an image to the specified level.
Type XTYP_EXECUTE
Syntax [SetZoom(docwinID, zoomLevel, <scaleFactor>, <xCenter, yCenter>)]
|
Parameter |
Data type |
Values |
Meaning |
|
docwinID |
DWORD |
0 | docwinID |
active | specific |
|
zoomLevel |
WORD |
1 |
magnify by one zoom step |
|
|
|
2 |
reduce by one zoom step |
|
|
|
3 |
scale to fit |
|
|
|
4 |
horizontal fit |
|
|
|
5 |
vertical fit |
|
|
|
6 |
display at actual size |
|
|
|
8 |
display at 1-to-1 scaling |
|
|
|
9 | 10 |
custom 1 | 2. See Remarks. |
|
scaleFactor |
float |
specific scale factor. See Remarks. | |
|
xCenter |
DWORD |
x coordinate of center of scaling | |
|
yCenter |
DWORD |
y coordinate of center of scaling. See Remarks. | |
Remarks
If the zoomLevel value is 9 or 10, you must use the scaleFactor parameter, and you may use the xCenter and yCenter. If the zoomLevel value is 1 - 8, the last three parameters are optional and will be ignored if used.
Release information
Added in Release 3.40.
See also