topic Re: MXS: CreateDialog Enter/Escape Button in 3ds Max Programming Forum

MXS: CreateDialog Enter/Escape Button

istan — Tue, 28 Apr 2020 13:05:58 GMT

Is there any way to end a modal dialog via <Enter> or <Escape>?

"Default buttons" would have been great..

I use of course "escapeenable:false" to supress the error message..

Re: MXS: CreateDialog Enter/Escape Button

denisT.MaxDoctor — Tue, 28 Apr 2020 17:09:15 GMT

@istan wrote:
Is there any way to end a modal dialog via <Enter> or <Escape>?
"Default buttons" would have been great..
I use of course "escapeenable:false" to supress the error message..

end with <Escape> and "not escapable" at the same time? Sorry, but I don’t understand what you want from a modal dialog.

Re: MXS: CreateDialog Enter/Escape Button

istan — Wed, 29 Apr 2020 13:51:02 GMT

a) I use "escapeenable:false" since I don't want to get an error message in the MXS listener

b) usually standard windows dialogs support <ESC> for aborting a dialog (IDCANCEL) and <Enter> for the OK-button (IDOK)

Re: MXS: CreateDialog Enter/Escape Button

miauuuu — Wed, 29 Apr 2020 18:11:52 GMT

Can you put a [OK/Cancel] button in your modal dialog and set the focus to it? When the dialog appears the user has to press Enter and the on btn_Cancel do event will close the dialog.

This works on max 2020

global rol_modal try(destroyDialog rol_modal)catch() rollout rol_modal "miauu" ( label lbl_01 "Press Escape to close the dialog" ) createdialog rol_modal modal:true escapeEnable:false

Re: MXS: CreateDialog Enter/Escape Button

denisT.MaxDoctor — Wed, 29 Apr 2020 18:44:04 GMT

do something with on-the-fly .net assembly and timer:

fn createKeyboardAssembly = ( source = "" source += "using System;\n" source += "using System.Runtime.InteropServices;\n" source += "public class VirtualKeys\n" source += "{\n" source += " const int VK_ESCAPE = 0x1B;\n" source += " const int VK_RETURN = 0x0D;\n" source += " const int KEY_PRESSED = 0x80;\n" source += " [DllImport(\"user32.dll\", CharSet = CharSet.Auto, ExactSpelling = true)]\n" source += " static extern short GetKeyState(int virtualKeyCode);\n" source += " public bool IsEscapePressed() { return (GetKeyState(VK_ESCAPE) & KEY_PRESSED) == KEY_PRESSED; }\n" source += " public bool IsReturnPressed() { return (GetKeyState(VK_RETURN) & KEY_PRESSED) == KEY_PRESSED; }\n" source += "}\n" csharpProvider = dotnetobject "Microsoft.CSharp.CSharpCodeProvider" compilerParams = dotnetobject "System.CodeDom.Compiler.CompilerParameters" compilerParams.ReferencedAssemblies.Add("System.dll"); compilerParams.GenerateInMemory = true compilerResults = csharpProvider.CompileAssemblyFromSource compilerParams #(source) compilerResults.CompiledAssembly ) try(destroydialog warning_dialog) catch() rollout warning_dialog "Warning" width:191 ( local vk_assembly = createKeyboardAssembly() local vk = vk_assembly.CreateInstance "VirtualKeys" local result = #default label text_lb "Press ESC or ENTER..." align:#left timer quit_timer interval:10 on quit_timer tick do ( case of ( (vk.IsEscapePressed()): ( result = #escape destroydialog warning_dialog ) (vk.IsReturnPressed()): ( result = #ok destroydialog warning_dialog ) ) ) on warning_dialog close do ( format ">> closed with %\n" result ) on warning_dialog open do ( ) ) createdialog warning_dialog modal:on escapeEnable:off

Re: MXS: CreateDialog Enter/Escape Button

denisT.MaxDoctor — Wed, 29 Apr 2020 18:55:00 GMT

or make it more universal:

fn createKeyboardAssembly = ( source = "" source += "using System;\n" source += "using System.Runtime.InteropServices;\n" source += "public class VirtualKeys\n" source += "{\n" source += " const int KEY_PRESSED = 0x80;\n" source += " [DllImport(\"user32.dll\", CharSet = CharSet.Auto, ExactSpelling = true)]\n" source += " static extern short GetKeyState(int virtualKeyCode);\n" source += " public bool IsKeyPressed(int key) { return (GetKeyState(key) & KEY_PRESSED) == KEY_PRESSED; }\n" source += "}\n" csharpProvider = dotnetobject "Microsoft.CSharp.CSharpCodeProvider" compilerParams = dotnetobject "System.CodeDom.Compiler.CompilerParameters" compilerParams.ReferencedAssemblies.Add("System.dll"); compilerParams.GenerateInMemory = true compilerResults = csharpProvider.CompileAssemblyFromSource compilerParams #(source) compilerResults.CompiledAssembly ) try(destroydialog warning_dialog) catch() rollout warning_dialog "Warning" width:191 ( local VK_ESCAPE = 0x1B local VK_RETURN = 0x0D local VK_SPACE = 0x20 local vk_assembly = createKeyboardAssembly() local vk = vk_assembly.CreateInstance "VirtualKeys" local result = #default label text_lb "Press ESC or ENTER..." align:#left timer quit_timer interval:10 on quit_timer tick do ( case of ( (vk.IsKeyPressed(VK_ESCAPE)): ( result = #escape destroydialog warning_dialog ) (vk.IsKeyPressed(VK_RETURN)): ( result = #ok destroydialog warning_dialog ) (vk.IsKeyPressed(VK_SPACE)): ( result = #space destroydialog warning_dialog ) ) ) on warning_dialog close do ( format ">> closed with %\n" result ) on warning_dialog open do ( ) ) createdialog warning_dialog modal:on escapeEnable:off

Re: MXS: CreateDialog Enter/Escape Button

istan — Wed, 29 Apr 2020 20:51:48 GMT

I hoped it would be more simple 😉 Nevertheless thx for the example!!

Re: MXS: CreateDialog Enter/Escape Button

istan — Wed, 29 Apr 2020 20:56:20 GMT

@miauuuu wrote:
Can you put a [OK/Cancel] button in your modal dialog and set the focus to it? When the dialog appears the user has to press Enter and the on btn_Cancel do event will close the dialog.

Nice try, but this idea fails, as soon as you have a text field in the dialog, which has the focus.. The ok and cancel buttons have to work independantly of any other currently focussed control..