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How to switch language in multi-lingual app that uses bds 2006 translation manager

Delphi 2006

I created a simple app with one button on the form, with a caption 'close'. Then I did Project->Languages->Add and added a french language. Then I used the Translation Editor to set the french equivalent of 'close'. Love it. Things couldnt be easier. Now then, in order for me to see that button in french when I run the app, I need to go to Control Panel->Regional And Language Options and switch from English to French. Thats nice too. But, what if I want that button in french to display irregardless of my current language setting. Is there a way to force it. Or better yet, can I change it at run time?
1 Solution
krupiniAuthor Commented:
I want the language switching functionality to be buit-in into the app that will override the Regional And Language Options settings.
Russell LibbySoftware Engineer, Advisory Commented:

Hope this helps,


Dynamic switching of resource DLLs

In addition to locating a resource DLL at application startup, it is possible to switch resource DLLs dynamically at runtime. To add this functionality to your own applications, you need to include the ReInit unit in your uses statement. (ReInit is located in the Richedit sample in the Demos directory.) To switch languages, you should call LoadResourceModule, passing the LCID for the new language, and then call ReinitializeForms.

For example, the following code switches the interface language to French:



if LoadNewResourceModule(FRENCH) <> 0 then


The advantage of this technique is that the current instance of the application and all of its forms are used. It is not necessary to update the registry settings and restart the application or reacquire resources required by the application, such as logging in to database servers.

When you switch resource DLLs the properties specified in the new DLL overwrite the properties in the running instances of the forms.

Note: Any changes made to the form properties at runtime will be lost. Once the new DLL is loaded, default values are not reset. Avoid code that assumes that the form objects are reinitialized to the their startup state, apart from differences due to localization.

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