delphi-2009

问题 Please bear in mind that I've read all the instructions I could find about adding component icon to my custom component. And I am able to do this when we talk about the icon size which is 24x24 pixels. I see the icon when a component is dropped on the form. However I can not see the small 16x16 icon which should be displayed when browsing Tool Palette. I've read that I should name my two other BMP files which are contained in DCR file like this: MyComponentName16 [for 16x16 BMP file]

问题 Please bear in mind that I've read all the instructions I could find about adding component icon to my custom component. And I am able to do this when we talk about the icon size which is 24x24 pixels. I see the icon when a component is dropped on the form. However I can not see the small 16x16 icon which should be displayed when browsing Tool Palette. I've read that I should name my two other BMP files which are contained in DCR file like this: MyComponentName16 [for 16x16 BMP file]

问题 Please bear in mind that I've read all the instructions I could find about adding component icon to my custom component. And I am able to do this when we talk about the icon size which is 24x24 pixels. I see the icon when a component is dropped on the form. However I can not see the small 16x16 icon which should be displayed when browsing Tool Palette. I've read that I should name my two other BMP files which are contained in DCR file like this: MyComponentName16 [for 16x16 BMP file]

问题 When I set the Label 's color e.g. on value clRed , the red on it only blink for a while. The color property still has clRed value, but in fact it has default clBtnFace color. Screenshot discribes the problem better. 回答1: Set Transparent to False. :-) Edit: assuming it's a TLabel, as shown in the screenshot. 回答2: Do you mean a TLabel or a TPanel ? Your screenshot shows a label, but it should work for both components. Make sure that the ParentColor property is set to false . 来源： https:/

问题 When I set the Label 's color e.g. on value clRed , the red on it only blink for a while. The color property still has clRed value, but in fact it has default clBtnFace color. Screenshot discribes the problem better. 回答1: Set Transparent to False. :-) Edit: assuming it's a TLabel, as shown in the screenshot. 回答2: Do you mean a TLabel or a TPanel ? Your screenshot shows a label, but it should work for both components. Make sure that the ParentColor property is set to false . 来源： https:/

问题 I don't know if this is a bug or something, but if I try to disable a TTreeView control, all the nodes become selected (grayed out)... Can anything be done to just disable the input for this control without changing the selection ? Of course, the node are not really selected, they are just visually selected, but this is annoying. 回答1: That's how the disabled control looks like when no theme is applied. You can modify it with little intervention to item drawing: procedure TForm1

问题 In my Setup I don't want use the standard Language Dialog form. Instead, I want to add a combobox to the Welcome page of my Inno Setup to do the same job made by the Language Dialog, so that it's able to : show all the languages included in the [Languages] section in the drop down list. So the user can select a language from this custom combobox. apply the chosen language to the whole setup. I know that this is not possible using the "normal way", because there are no functions available in

来源： https://stackoverflow.com/questions/12782567/what-windows-messages-are-used-by-delphi-to-notice-changes-in-a-combo-box

问题 My goal is to upload a text file via HTTP post I am using Delphi 2009. Say for example to the following URL https://www.example.com/ex/exampleAPI.asmx/Process I understand it can be done by using the TIdHttp component. And the following call IdHttp1.Post(); But I cant figure out how to set up everything i.e. specifying the url and including the file to be posted. Thanks. 回答1: TIdHTTP has two overloaded versions of Post() that take a filename as input: var Response: String; Response := IdHTTP1

问题 My goal is to upload a text file via HTTP post I am using Delphi 2009. Say for example to the following URL https://www.example.com/ex/exampleAPI.asmx/Process I understand it can be done by using the TIdHttp component. And the following call IdHttp1.Post(); But I cant figure out how to set up everything i.e. specifying the url and including the file to be posted. Thanks. 回答1: TIdHTTP has two overloaded versions of Post() that take a filename as input: var Response: String; Response := IdHTTP1