LAnnAutomation::SetBitmapDpiX
#include "ltwrappr.h"
virtual L_INT LAnnAutomation::SetBitmapDpiX(dDpiX, uFlags=0)
L_DOUBLE dDpiX; |
/* horizontal DPI value to set */ |
L_UINT uFlags; |
/* reserved for future use */ |
Sets the horizontal Bitmap DPI (dots per inch) value that is used to translate the horizontal distance for Ruler objects. This function is available in the Document/Medical Toolkits.
Parameter |
Description |
dDpiX |
The horizontal DPI value to set. Valid values are greater than or equal to 1. |
|
If you pass 0 or a positive value less than 1, the value will default to 150. If you pass a negative value, the function will return an error. |
uFlags |
Reserved for future versions, use 0. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
You should set this value to the bitmap’s XResolution. Call this function every time you load objects or paste them from the clipboard. Otherwise, the distances shown by the ruler objects will not be accurate.
Required DLLs and Libraries
LTANN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Example
L_VOID ChangeDpiX(LAnnAutomation L_FAR * pAutomation, LBitmapBase
L_FAR * pBitmap)
{
L_DOUBLE xRes;
L_DOUBLE yRes;
/* get the bitmap x and y res from the object */
xRes = pAutomation->GetBitmapDpiX();
yRes = pAutomation->GetBitmapDpiY();
/* set all selected items to have the same dpi for ruler
tool as the bitmap */
if(xRes != (L_DOUBLE) pBitmap->GetXResolution())
pAutomation->SetBitmapDpiX((L_DOUBLE)
pBitmap->GetXResolution(), ANNFLAG_RECURSE | ANNFLAG_SELECTED);
if(yRes != (L_DOUBLE) pBitmap->GetYResolution())
pAutomation->SetBitmapDpiY((L_DOUBLE)
pBitmap->GetYResolution(),
ANNFLAG_RECURSE | ANNFLAG_SELECTED);
}