Export to PNG from Illustrator

thanks for giving me key name. :)
I didn't assume the fact that keys were in decimal.

ps: we could also use the Rasterize suite, and then export the result.

Exaclty, I forgot to explain the fact that Art must be selected before rasterizing and exporting it. This stuff is done is elsewhere in my code.

A helper class does this stuff.

Here it is how I do. (It works, but I do not tell that is the way it should be done ;) )

first: I insert a temp layer in the Artwork tree.
then : duplicate art you want to be exported and add it to tempLayer, and set its selection state. (See Art suite and setUserAttributes.)
after: hide all others layers
and finally: call commands, dispose duplicated art and delete temp layer.
roll back to previous state for all layers.

Thomas.

I have tried your code and the

result1 = sAIActionManager->PlayActionEvent("ai_plugin_rasterize", dialogStatus1, valueParameterBlock1);

does not seem to work unless you select all before the call.

result1 = sAIActionManager->PlayActionEvent(kAISelectAllAction, kDialogOff, NULL);

Any ideas? The ai_plugin_rasterize module says that there is an invalid selection in the PlayActionEvent call.

This is just the code I was originally looking for. Thank you for sharing this with us. To clean up your code a bit I have converted your numbers into hex and then into characters so it is more readable. So 1668246642 = 0x636F6C72 = 'colr' as 0x63 is the ASCII code for a 'c', 0x6F = 'o', 0x6C = 'l' and 0x72 = 'r'. Here are the rest:

1668246642 = 0x636F6C72 = 'colr'
1685088558 = 0x6470692E = 'dpi.'
1651205988 = 0x626B6764 = 'bkgd'
1954115685 = 0x74797065 = 'type'
1634494763 = 0x616C692B = 'ali+'
1835103083 = 0x6D61736B = 'mask'
1885430884 = 0x70616464 = 'padd'

Also "Lissage" means "Smoothing" or "Anti-alias" in English.

Thank you again. I will give it a try.

Robin Landsbert

For information I find a workaround to export art as png, using 'ai_plugin_rasterize' and 'adobe_exportDocument' commands.

First of all, art is rasterized using 'ai_plugin_rasterize' command.
I used action scripts, as you told me, to 'hack' adobe' command. Command is used as follow:

ASErr result1;
AIActionParamValueRef valueParameterBlock1 = NULL;
ActionDialogStatus dialogStatus1 = kDialogOff;

result1 = sAIActionManager->AINewActionParamValue(&valueParameterBlock1);
if (valueParameterBlock1)
{
result1 = sAIActionManager->AIActionSetString(valueParameterBlock1, 1668246642, "CMJN");
result1 = sAIActionManager->AIActionSetString(valueParameterBlock1, 1685088558, "72");
result1 = sAIActionManager->AIActionSetString(valueParameterBlock1, 1651205988, "1");
result1 = sAIActionManager->AIActionSetString(valueParameterBlock1, 1954115685, "0");
result1 = sAIActionManager->AIActionSetString(valueParameterBlock1, 1634494763, "1");
result1 = sAIActionManager->AIActionSetString(valueParameterBlock1, 1835103083, "0");
result1 = sAIActionManager->AIActionSetString(valueParameterBlock1, 1885430884, "0.0");

result1 = sAIActionManager->PlayActionEvent("ai_plugin_rasterize", dialogStatus1, valueParameterBlock1);
result1 = sAIActionManager->AIDeleteActionParamValue(valueParameterBlock1);
}

This is hardcore and awful coding! ;) all keys are cuted and pasted directly from action script I have made, and values iare directly written in that method.

Parameter 1 : Color Model. (enumerated)
Parameter 2 : Resolution. (integer)
Parameter 3 : Background (enumerated)
Parameter 4 : (enumerated)
Parameter 5 : Do not know the correct translation in English, "Lissage" mode in french in the text. (enumerated)
Parameter 6: Create a mask (boolean)
Parameter 7 : add point around art.(unit real)

Then adobe_exportDocument is called.
As it shown above, command is called like that:

ASErr result;
AIActionParamValueRef valueParameterBlock = NULL;
ActionDialogStatus dialogStatus = kDialogOff;

result = AIActionManager->AINewActionParamValue(&valueParameterBlock);

if (valueParameterBlock)
{

result = sAIActionManager->AIActionSetString(valueParameterBlock, 'name', pathName);

result = sAIActionManager->AIActionSetString(valueParameterBlock, 'frmt', "Adobe PNG Format");

result = sAIActionManager->AIActionSetString(valueParameterBlock, 'extn', "png");

result = sAIActionManager->PlayActionEvent("adobe_exportDocument", dialogStatus, valueParameterBlock);

result = sAIActionManager->AIDeleteActionParamValue(valueParameterBlock);
}

I hope it works out -- if there's anything I've learned from getting to know this API is that there is a *ton* of great stuff in there, but for some reason a lot of it is named about as unintuitively as you could imagine! :)

Great. Glad that it has been useful to both of us. And thanks again A. Patterson for the pointer to the header file.

Thanks! It'is exactly what i was looking for! :)

AIImageOptimization.h looks much more promising. The AIImageOptPNGParams has the parameters for resolution and alpha and even width and height so this should be perfect. Thank you again for the pointer.