Mouse drag event available for art objects?

Question

I want to receive event as user drag an art object so I can continuously monitor its position on the artboard.
Anyone know how to do this? Thanks so much.

Answer 1

You can take a look at the multiarrowtool in adobes sample code. That should give you the code required. These two functions allow for you to get the mouse postion.
ASErr MultiArrowToolPlugin::AddAnnotator(SPInterfaceMessage *message)
ASErr result = kNoErr;
 try
result = sAIAnnotator->AddAnnotator(message->d.self,"MultiArrowTool Annotator", &fAnnotatorHandle);aisdk::check_ai_error(result);
result = sAIAnnotator->SetAnnotatorActive(fAnnotatorHandle,
false);aisdk::check_ai_error(result);
catch (ai::Error& ex){
result = ex;
catch(...){
result = kCantHappenErr;
return result;}
*/ASErr MultiArrowToolPlugin::DrawAnnotator(AIAnnotatorMessage* message)
ASErr result = kNoErr;
 try
 // Invalid previous annotator.
result = sAIAnnotator->InvalAnnotationRect(NULL, &oldAnnotatorRect);
 // Get the string to display in annotator.
ai::UnicodeString pointStr;
 //result = this->GetPointString(fEndPoint, pointStr);
result =this->GetPointString(fStartingPoint, pointStr);aisdk::check_ai_error(result);
AIPoint annotatorPoint;
result = sAIDocumentView->ArtworkPointToViewPoint(NULL, &fEndPoint, &annotatorPoint);
// Move 5 points right and 5 points up.
annotatorPoint.h += 5;
annotatorPoint.v -= 5;
 // Find cursor bound rect.
AIRect annotatorRect;
result = sAIAnnotatorDrawer->GetTextBounds(message->drawer, pointStr, &annotatorPoint, annotatorRect);
aisdk::check_ai_error(result);
 //Draw a filled rectangle, the following R, G and B values combined makes light yellow.
 unsigned short red = 65000; 
unsigned short green = 65000; 
unsigned short blue = 40000;ADMRGBColor yellowFill = {red, green, blue};
sAIAnnotatorDrawer->SetColor(message->drawer, yellowFill);
result = sAIAnnotatorDrawer->DrawRect(message->drawer, annotatorRect,
true);aisdk::check_ai_error(result);
//Draw black outline, 0 for R, G and B makes black.
 unsigned short black = 0;ADMRGBColor blackFill = {black, black, black};
sAIAnnotatorDrawer->SetColor(message->drawer, blackFill);
sAIAnnotatorDrawer->SetLineWidth(message->drawer, 0.5);
result = sAIAnnotatorDrawer->DrawRect(message->drawer, annotatorRect,
false);aisdk::check_ai_error(result);
// Draw cursor text.
result = sAIAnnotatorDrawer->SetFontPreset(message->drawer, kAIAFSmall);
aisdk::check_ai_error(result);
result = sAIAnnotatorDrawer->DrawTextAligned(message->drawer, pointStr, kAICenter, kAIMiddle, annotatorRect);
aisdk::check_ai_error(result);
 // Save old rect
oldAnnotatorRect = annotatorRect;
 catch (ai::Error& ex){
result = ex;
return result;}
*/ASErr MultiArrowToolPlugin::GetPointString(const AIRealPoint& point, ai::UnicodeString& pointStr){
ASErr result = kNoErr;
try
ASInt32 precision = 2;
ai::UnicodeString horiz, vert;
ai::NumberFormat numFormat;
horiz = numFormat.toString((float) point.h, precision, horiz);vert = numFormat.toString((
float) -point.v, precision, vert);pointStr.append(ai::UnicodeString(
"h: ").append(horiz)
.append(ai::UnicodeString(
", v: ").append(vert)));
catch (ai::Error& ex){
result = ex;
return result;}