In CADImageDLL, which function have the zoom in an
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In CADImageDLL, which function have the zoom in an
In CADImageDLL, which function have the zoom in and zoom out functionality? Can you show me or give me some samples for it?
I appreciate your help.
jake
I appreciate your help.
jake
Hello Jake,
<b>CAD Image DLL</b> has the following function:
<i>hObject</i>
<br />Identifies a <b>CADImage</b> object handle.
<br /><i>lpcd</i>
<br />Points to <font color="blue">CADDRAW</font id="blue"> structure containing the device context, logical coordinates, drawing format etc.
<br />The <b>DrawCADEx</b> function draws <b>CADImage</b> object on specified device context.
<br />This function allows defining necessary scale factor. Usually it is called on WM_PAINT event.
<br />The following example you can find in the <b>VC</b> demo application available in the <b>CAD Image DLL</b> package (http://www.cadsofttools.com/download/cadimage.zip) in the ..\cadimage\DemoVC\.. folder.
Sergey.
please post questions to the forum or write to support@cadsofttools.com
<b>CAD Image DLL</b> has the following function:
Code: Select all
int DrawCADEx(
<font color="blue">HANDLE</font id="blue"> <b>hObject</b>,
<font color="blue">LPCADDRAW</font id="blue"> <b>lpcd</b>
);
<br />Identifies a <b>CADImage</b> object handle.
<br /><i>lpcd</i>
<br />Points to <font color="blue">CADDRAW</font id="blue"> structure containing the device context, logical coordinates, drawing format etc.
<br />The <b>DrawCADEx</b> function draws <b>CADImage</b> object on specified device context.
<br />This function allows defining necessary scale factor. Usually it is called on WM_PAINT event.
<br />The following example you can find in the <b>VC</b> demo application available in the <b>CAD Image DLL</b> package (http://www.cadsofttools.com/download/cadimage.zip) in the ..\cadimage\DemoVC\.. folder.
Code: Select all
<font color="blue">void</font id="blue"> CMainWindow::Draw()
{
<font color="blue">if</font id="blue"> (bIsPocessing)
<font color="blue">return</font id="blue">;
PAINTSTRUCT Paint;
HDC hDC;
hDC = BeginPaint(hWnd, &Paint);
OldNearestPoint.x = -10;
OldNearestPoint.y = -10;
SetBgrndColor(colorBgrnd);
<font color="blue">if</font id="blue"> ((CADImage)
<font color="blue">#ifndef</font id="blue"> CS_STATIC_DLL
&&
(DrawCADEx)
<font color="blue">#endif</font id="blue">
)
{
<font color="blue">if</font id="blue"> (fAbsHeight > 0)
{
sgFloat scale = (sgFloat) nScale / 100.0;
memset(&CADDraw, 0, <font color="blue">sizeof</font id="blue">(CADDRAW));
GetClientRect(hWnd, &CADDraw.R);
CADDraw.R.left = <font color="blue">int</font id="blue">(CADDraw.R.left * scale) + offset.x;
CADDraw.R.right = <font color="blue">int</font id="blue">(CADDraw.R.right * scale) + offset.x;
CADDraw.R.top = <font color="blue">int</font id="blue">(CADDraw.R.top * scale) + offset.y;
CADDraw.R.bottom = <font color="blue">int</font id="blue">(CADDraw.R.top + (CADDraw.R.right - CADDraw.R.left) * fKoef);
ScaleRect.x = fAbsWidth / (CADDraw.R.right - CADDraw.R.left);
ScaleRect.y = fAbsHeight / (CADDraw.R.bottom - CADDraw.R.top);
CADDraw.Size = <font color="blue">sizeof</font id="blue">(CADDRAW);
CADDraw.DrawMode = DrwMode;
CADDraw.DC = hDC;
DrawCADEx(CADImage, &CADDraw);
}
}
EndPaint(hWnd, &Paint);
}
please post questions to the forum or write to support@cadsofttools.com