[eyal282]

https://sm.alliedmods.net/new-api/fu...atNativeString

I don't understand how to execute this on such piece of code:

native Core_PrintToChatEyal(const String:Message[], any:...);

public int Native_PrintToChatEyal(Handle plugin, int numParams)
{
	new String:Message[192], String:buffer[192];
	
	GetNativeString(1, Message, sizeof(Message));
	
	// FormatNativeString and buffer will be formatted.

	PrintToChatEyal(buffer);
}

I doubt you'll need the stock PrintToChatEyal or the CreateNative, if you need tell me ( Though I doubt it ).

[asherkin]

public int Native_PrintToChatEyal(Handle plugin, int numParams)
{
	char buffer[192];
	int bufferLength = 0;
	int error = FormatNativeString(0, 1, 2, sizeof(bufer), bufferLength, buffer);
	if (error != SP_ERROR_NONE) {
		ThrowNativeError(error, "failed to format param 1???");
	}

	PrintToChatEyal("%s", buffer);
}

[eyal282]

Originally Posted by asherkin public int Native_PrintToChatEyal(Handle plugin, int numParams) { char buffer[192]; int bufferLength = 0; int error = FormatNativeString(0, 1, 2, sizeof(bufer), bufferLength, buffer); if (error != SP_ERROR_NONE) { ThrowNativeError(error, "failed to format param 1???"); } PrintToChatEyal("%s", buffer); }

Can you briefly explain what each argument means? IDK why I can't put 1+1 for it.

[nosoop]

Originally Posted by eyal282 Can you briefly explain what each argument means? IDK why I can't put 1+1 for it.

The documentation explains it pretty well, but for your particular case:

• out_param being 0 means it writes the formatted string out to the char[] referenced in out_string (the char[] buffer) as opposed to a char[] buffer passed in through the native
• fmt_param and vararg_param being 1 and 2 respectively refer to the args in the native definition for Core_PrintToChatEyal.
• out_len is the length of the char[] (buffer is spelled incorrectly in the code here)
• written will store the formatted output's length (here it'll be stored to bufferLength)

[eyal282]

Originally Posted by nosoop The documentation explains it pretty well, but for your particular case: out_param being 0 means it writes the formatted string out to the char[] referenced in out_string (the char[] buffer) as opposed to a char[] buffer passed in through the native fmt_param and vararg_param being 1 and 2 respectively refer to the args in the native definition for Core_PrintToChatEyal. out_len is the length of the char[] (buffer is spelled incorrectly in the code here) written will store the formatted output's length (here it'll be stored to bufferLength)

I wanna know if I grasped it correctly.

out_param is unneeded ( and for now I shouldn't care what it is )

fmt_parameter = The parameter number of the string that contains the "%s" and "%i" and etc.
vararg_param = The parameter number of "any:..."
out_len = sizeof(Buffer);
out_string = Buffer

[nosoop]

Originally Posted by eyal282 I wanna know if I grasped it correctly. out_param is unneeded ( and for now I shouldn't care what it is ) fmt_parameter = The parameter number of the string that contains the "%s" and "%i" and etc. vararg_param = The parameter number of "any:..." out_len = sizeof(Buffer); out_string = Buffer

• You do have to care that the out_param is 0 here.
• Yes on the rest.

[eyal282]

Originally Posted by nosoop You do have to care that the out_param is 0 here. Yes on the rest.

I'm still confused on what out_param does

[asherkin]

Writes the output to a native parameter rather than a local variable.

[nosoop]

Originally Posted by eyal282 I'm still confused on what out_param does

I can't think of a proper example so here's a simple one

native FormatSomeMessage(char[] buffer, int maxlen, const char[] format, any ...);

public int Native_FormatSomeMessage(Handle plugin, int numParams) {
    int maxlen = GetNativeCell(2);
    int written;
    
    // out_param being 1 means the formatted string gets written out to the "buffer" char[] that was passed in
    int result = FormatNativeString(1, 3, 4, maxlen, written);
    if (result != SP_ERROR_NONE) {
        ThrowNativeError("FormatNativeString failed with error");
    }
    return written;
}

[eyal282]

Originally Posted by nosoop I can't think of a proper example so here's a simple one native FormatSomeMessage(char[] buffer, int maxlen, const char[] format, any ...); public int Native_FormatSomeMessage(Handle plugin, int numParams) { int maxlen = GetNativeCell(2); int written; // out_param being 1 means the formatted string gets written out to the "buffer" char[] that was passed in int result = FormatNativeString(1, 3, 4, maxlen, written); if (result != SP_ERROR_NONE) { ThrowNativeError("FormatNativeString failed with error"); } return written; }

I want to do this basically, unsure why they made it so complex...:

native FormatSomeMessage(const char[] format, any ...);

public int Native_FormatSomeMessage(Handle plugin, int numParams) {

    new String:buffer[256];
    VFormatNative(1, 2, buffer, sizeof(buffer)); // 1 is format, 2 is any:...
    PrintToChatEyal(buffer);
    }
    return written;
}