【转帖】exception error on load of a new drawing
 

exception error on load of a new drawing
exception error on load of a new drawing
i rebuild a own dll using dwgdirect 1.09 with the new version (1.10). i'm using vc6.
my dll draws a dxf file in a viewer. with the new version, an error occured when i want to update the screen with a new drawing. the load process seem to correct. i can saw than the drawing is starting, but the process crashes after a moment.
this is the call stack when the error occured:
hyprview! oddbdatabase::getlwdisplay(void) address 0x100b37d0
hyprview! odgspaperlayouthelper::update(class odgsdcrect *) + 141 bytes
hyprview! odgspaperlayouthelper::update(class odgsdcrect *) + 1151 bytes
viewrepaint() line 23 + 28 bytes
viewload(char * 0x00a0c390) line 306
viewers! 00461864()
viewers! 00453c3a()
user32! 77d43a50()
user32! 77d43b1f()
user32! 77d444f5()
user32! 77d44525()
ntdll! 77f75da3()
user32! 77d4658d()
viewers! 00442ff8()
viewers! 00466073()
kernel32! 77e814c7()
this is my viewload and viewrepaint functions:
int viewload(char *filename)
{
pdevice->eraseallviews();
pdb = svcs.readfile(filename);
pdwgcontext->setdatabase(pdb);
pdevice = oddbgsmanager::setupactivelayoutviews(pdevice, pdwgcontext);
viewrepaint();
return(0);
}
void viewrepaint(void)
{
beforepaint();
clearwindow();
pdevice->update(null);
afterpaint();
}
thanks,
martin groleau
hypershell inc.
hi,
i just wondered how it worked earlier in 1.09...
please try to modify your code to use different variables for your device pointer an returned by setupactivelayoutviews():
code:
int myinit()
{
pmydevfff"> = createmydevice();
}
int viewload(char *filename)
{
if(pdevicefff">.get())
pdevicefff">->eraseallviews();
pdb = svcs.readfile(filename);
pdwgcontext->setdatabase(pdb);
pdevicefff"> = oddbgsmanager::
setupactivelayoutviews(pmydevfff">, pdwgcontext);
viewrepaint();
return(0);
}
void viewrepaint(void)
{
beforepaint();
clearwindow();
pdevicefff">->update(null);
afterpaint();
}